#11921: Allow Sympy conversion sign/sgn
-------------------------+--------------------------------------------------
   Reporter:  kcrisman   |          Owner:  burcin                    
       Type:  defect     |         Status:  needs_work                
   Priority:  major      |      Milestone:  sage-5.0                  
  Component:  symbolics  |       Keywords:  sympy conversion beginner 
Work_issues:             |       Upstream:  N/A                       
   Reviewer:             |         Author:  Peter Story, Burcin Erocal
     Merged:             |   Dependencies:                            
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Changes (by newvalueoldvalue):

  * author:  Peter Story => Peter Story, Burcin Erocal


Comment:

 I was wrong. For some reason, `SympyConverter.composition()` method
 defined a translation table of its own.
 attachment:trac_11921-sympy_conversion.patch fixes it to go through the
 standard mechanism. Your patch should work now.

 We still need doctests to switch this to needs_review.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11921#comment:6>
Sage <http://www.sagemath.org>
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